3994456 has 32 divisors (see below), whose sum is σ = 8281440. Its totient is φ = 1796608.

The previous prime is 3994453. The next prime is 3994481. The reversal of 3994456 is 6544993.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2490 + ... + 3766.

It is an arithmetic number, because the mean of its divisors is an integer number (258795).

Almost surely, 2^3994456 is an apocalyptic number.

It is an amenable number.

3994456 is an abundant number, since it is smaller than the sum of its proper divisors (4286984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3994456 is a wasteful number, since it uses less digits than its factorization.

3994456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1319 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 3994456 is about 1998.6135194179. The cubic root of 3994456 is about 158.6667333600. Note that the first 3 decimals are identical.

It can be divided in two parts, 39944 and 56, that added together give a square (40000 = 200²).

The spelling of 3994456 in words is "three million, nine hundred ninety-four thousand, four hundred fifty-six".